| 11-29-2005, 04:31 AM | #1 |
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Join Date: Aug 2005
Posts: 36
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Alright long story short I have a 91 civic with a b16 tjat I bought from a friend well it has a loud vibration noise at 3,000 rpm up to abou 5,000 I just thought it was the az racing motor mounts and something touching the frame somewhere like the exhaust didnt really investegate it yet but I just put 300 miles on my other 91 civic turbo d16z6 i completely built it besides sleeves,any way it has started to do the same thing.i know it is hard to explain the noise but imagine a vibration you can feel and here in the upper rpms.I have only gotten in boost about 4 times and that was after 250 miles and only 10 pounds.Please any reply would be great suggestions.same experiences.oh motor runs great the compression is 185 across the cylinders.
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| 11-29-2005, 05:34 AM | #2 |
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Join Date: Dec 2003
Posts: 868
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what exactly do you mean...generally a vibration is from mounts or something rubbing...if its in the motor...i dont know what to tell you.
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| 11-29-2005, 12:39 PM | #3 |
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Join Date: Aug 2005
Posts: 36
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Well I have energy susp mount inserts.
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| 11-29-2005, 01:07 PM | #4 |
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Join Date: Jul 2003
Posts: 5,381
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christ could be anything.. cat vibrating on the heat sheild (had this issue) muffler vibrating.. (these only happen to me at certain rpms or certain amount of shake i get on like a cold start or something.. dont think anything you could feel would be vibrating in your motor.. doesnt sound like motor mounts either but i could be wrong..
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| 11-30-2005, 02:57 AM | #5 |
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Join Date: Aug 2005
Posts: 36
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i AM SO PARANOID I WAS WORRIED ABOUT MY BEARINGS I used acl bearing which I have never used before but I have never heard a bearing make a vibration .Just worried.I have spent alot of loot on this motor I am trying to get 450 out of the sohc.
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| 11-30-2005, 03:23 AM | #6 |
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Join Date: Jul 2003
Posts: 5,381
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i've got acl's in mine.. so far so good
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| 11-30-2005, 04:07 AM | #7 |
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Senior Member
Join Date: Oct 2005
Location: Chicago, IL
Posts: 301
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Are you sure it's a vibration? If it's more of like a loud squeaking noice it could be your power steering pump. Or your belt could be lose.
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| 11-30-2005, 06:02 AM | #8 |
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Join Date: Dec 2003
Posts: 868
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no...trust me, you will know if its bearing noise...its very distinctive...it does not sound like a vibration...Ive had mixed acls in mine for almost 2 years now...i run the standard mains with the race rods...no probs...no bearing failure.
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| 12-01-2005, 03:57 AM | #9 |
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Join Date: Aug 2005
Posts: 36
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Well I appreciate the replys I think it might be where I have bolted my piping to my frame with no insulators.But my b16 has no piping so I don't know what the noise is on it.Could a tranny make a vibration?just asking.I have seen alot of trannys make beariong noise and whining noise,but never a vibration unless a gear was missing teeth.
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